Please help authenticate/i.d. this cap

Article about: Hello Group, Can anyone help me identify and authenticate this cap? I can post more pictures later if needed - camera died. Unfortunately, the sweatband cracked and fell out. There is a make

Please help authenticate/i.d. this cap

Hello Group,
Can anyone help me identify and authenticate this cap? I can post more pictures later if needed - camera died. Unfortunately, the sweatband cracked and fell out. There is a maker's mark stamped on the center of the sweatband. The first word begins "Qua....S" and, I think, the second word is "Marke" not sure though because the stamp is faint looking. Thanks in advance for your help!